A pair of trumpeter swans fly over their winter grounds Friday, Dec. 8, 2017, in Conway, Wash. Hundreds of the swans join tens of thousands of snow geese from their mating grounds in Alaska and Siberia, spending the winter in wetlands and farm fields of the Skagit Valley and other areas of northwest Washington.
A pair of trumpeter swans fly over their winter grounds Friday, Dec. 8, 2017, in Conway, Wash. Hundreds of the swans join tens of thousands of snow geese from their mating grounds in Alaska and Siberia, spending the winter in wetlands and farm fields of the Skagit Valley and other areas of northwest Washington. Elaine Thompson AP
A pair of trumpeter swans fly over their winter grounds Friday, Dec. 8, 2017, in Conway, Wash. Hundreds of the swans join tens of thousands of snow geese from their mating grounds in Alaska and Siberia, spending the winter in wetlands and farm fields of the Skagit Valley and other areas of northwest Washington. Elaine Thompson AP